| E | O (JD) | O (dat) | Period |
| -107 | 2412670 | 1893-07-25 | 243.57 |
| -98 | 2414875 | 1899-08-08 | 243.16 |
| -97 | 2415120 | 1900-04-10 | 243.13 |
| -95 | 2415600 | 1901-08-03 | 243.86 |
| -94 | 2415845 | 1902-04-05 | 243.43 |
| -92 | 2416327 | 1903-07-31 | 243.1 |
| -91 | 2416575 | 1904-04-04 | 243.81 |
| -89 | 2417061 | 1905-08-03 | 243.48 |
| -88 | 2417300 | 1906-03-30 | 242.81 |
| -86 | 2417800 | 1907-08-12 | 243.38 |
| -85 | 2418040 | 1908-04-08 | 244 |
| -83 | 2418518 | 1909-07-30 | 244.27 |
| -82 | 2418753 | 1910-03-22 | 243.79 |
| -80 | 2419260 | 1911-08-11 | 243.58 |
| -79 | 2419500 | 1912-04-07 | 244.28 |
| -76 | 2420235 | 1914-04-12 | 244.41 |
| -74 | 2420716 | 1915-08-06 | 244.07 |
| -73 | 2420970 | 1916-04-16 | 244.12 |
| -70 | 2421695 | 1918-04-11 | 244.31 |
| -68 | 2422175 | 1919-08-04 | 244.43 |
| -64 | 2423160 | 1922-04-15 | 244.57 |
| -61 | 2423900 | 1924-04-24 | 244.67 |
| -58 | 2424630 | 1926-04-24 | 245.33 |
| -55 | 2425365 | 1928-04-28 | 245.72 |
| -52 | 2426104 | 1930-05-07 | 245.34 |
| -49 | 2426837 | 1932-05-09 | 245.71 |
| -46 | 2427582 | 1934-05-24 | 247.41 |
| -43 | 2428319 | 1936-05-30 | 247.71 |
| -41 | 2428800 | 1937-09-23 | 247.54 |
| -40 | 2429067 | 1938-06-17 | 247.96 |
| -39 | 2429340 | 1939-03-17 | 248.05 |
| -37 | 2429808 | 1940-06-27 | 248.8 |
| -36 | 2430064 | 1941-03-10 | 247.95 |
| -34 | 2430554 | 1942-07-13 | 245.43 |
| -33 | 2430804 | 1943-03-20 | 245.14 |
| -31 | 2431291 | 1944-07-19 | 245.67 |
| -30 | 2431535 | 1945-03-20 | 244.9 |
| -28 | 2432026 | 1946-07-24 | 244.05 |
| -27 | 2432270 | 1947-03-25 | 243.71 |
| -25 | 2432761 | 1948-07-28 | 244.05 |
| -24 | 2433000 | 1949-03-24 | 243.63 |
| -22 | 2433483 | 1950-07-20 | 243.47 |
| -21 | 2433730 | 1951-03-24 | 243.51 |
| -19 | 2434221 | 1952-07-27 | 243.67 |
| -12 | 2435918 | 1957-03-20 | 244.03 |
| -9 | 2436656 | 1959-03-28 | 244.36 |
| -6 | 2437385 | 1961-03-26 | 244.21 |
| -4 | 2437879 | 1962-08-02 | 244.82 |
| -3 | 2438121 | 1963-04-01 | 246.07 |
| -1 | 2438622 | 1964-08-14 | 245.73 |
| 0 | 2438853 | 1965-04-02 | 245.24 |
| 3 | 2439610 | 1967-04-29 | 244.44 |
| 5 | 2440100 | 1968-08-31 | 243.41 |
| 6 | 2440330 | 1969-04-18 | 243.15 |
| 9 | 2441065 | 1971-04-23 | 242.19 |
| 11 | 2441535 | 1972-08-05 | 241.25 |
| 12 | 2441780 | 1973-04-07 | 242.42 |
| 14 | 2442260 | 1974-07-31 | 243.17 |
| 15 | 2442500 | 1975-03-28 | 243.81 |
| 17 | 2443000 | 1976-08-09 | 245.24 |
| 18 | 2443248 | 1977-04-14 | 246.48 |
| 20 | 2443740 | 1978-08-19 | 246.71 |
| 21 | 2443980 | 1979-04-16 | 246.05 |
| 23 | 2444485 | 1980-09-02 | 245.9 |
| 24 | 2444731 | 1981-05-06 | 246.14 |
| 26 | 2445210 | 1982-08-28 | 246.76 |
| 27 | 2445457 | 1983-05-02 | 246.29 |
| 29 | 2445955 | 1984-09-11 | 245.3 |
| 30 | 2446202 | 1985-05-16 | 245.63 |
| 32 | 2446700 | 1986-09-26 | 245.72 |
| 33 | 2446937 | 1987-05-21 | 245.83 |
| 34 | 2447185 | 1988-01-24 | 245.5 |
| 35 | 2447423 | 1988-09-18 | 243.56 |
| 36 | 2447667 | 1989-05-20 | 242.67 |
| 38 | 2448170 | 1990-10-05 | 243.5 |
| 39 | 2448406 | 1991-05-29 | 244.05 |
| 41 | 2448880 | 1992-09-14 | 243.95 |
| 42 | 2449125 | 1993-05-17 | 242.86 |
| 45 | 2449867 | 1995-05-29 | 243.09 |
| 46 | 2450110 | 1996-01-27 | 245.17 |
| 47 | 2450347 | 1996-09-20 | 245.95 |
| 48 | 2450590 | 1997-05-21 | 245.4 |
| 51 | 2451334 | 1999-06-04 | 246.11 |
| 52 | 2451591 | 2000-02-16 | 246.68 |
| 53 | 2451825 | 2000-10-07 | 247.15 |
| 54 | 2452075 | 2001-06-14 | 247.53 |
| 55 | 2452332 | 2002-02-26 | 246.61 |
| 57 | 2452812 | 2003-06-21 | 246.58 |
| 58 | 2453068 | 2004-03-03 | 247.1 |
| 60 | 2453559 | 2005-07-07 | 246.33 |
| 61 | 2453805 | 2006-03-10 | 246.14 |
| 63 | 2454296 | 2007-07-14 | 246.95 |
| 64 | 2454546 | 2008-03-20 | 246.95 |
| 66 | 2455034 | 2009-07-21 | 246.94 |
| 67 | 2455279 | 2010-03-23 | 247.44 |
| 68 | 2455540 | 2010-12-09 | 247.83 |
| 69 | 2455779 | 2011-08-05 | 248.71 |
| 70 | 2456030 | 2012-04-12 | 249.81 |
| 72 | 2456525 | 2013-08-20 | 248.75 |
| 73 | 2456778 | 2014-04-30 | 247.81 |
| 74 | 2457030 | 2015-01-07 | 247.87 |
| 75 | 2457280 | 2015-09-14 | 247.53 |
| 76 | 2457519 | 2016-05-10 | 247.14 |
| 77 | 2457765 | 2017-01-11 | 246.93 |
| 78 | 2458010 | 2017-09-13 | 246.71 |
| 79 | 2458258 | 2018-05-19 | 246.86 |
| 80 | 2458505 | 2019-01-21 | 246.64 |
| 81 | 2458760 | 2019-10-03 | 246.36 |
| 82 | 2459004 | 2020-06-03 | 247.05 |
| 83 | 2459251 | 2021-02-05 | 247.51 |
| 84 | 2459486 | 2021-09-28 | 245.75 |
| 85 | 2459738 | 2022-06-07 | 243.9 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |